hydrogen 4

A form of hydrogen-4 — Synonym of quadrium (“isotope of hydrogen”).

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Meanings

nounhydrogen 4 (uncountable)
  1. alternativeuncountableAlternative spelling of hydrogen-4.

Synonyms & antonyms

Also see
quadrium
Cite this entry
APA

hydrogen 4. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/hydrogen%204

MLA

“hydrogen 4.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/hydrogen%204. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “hydrogen 4,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/hydrogen%204.

Source: hydrogen 4 on Wiktionary, CC BY-SA 4.0.